April was the top reader at her school. by the end of the school year, she earned
453 points in the accelerated reader program. she read and took tests on of the
165 fiction books in the library and on of the 90 mysteries. what fraction of
the books that were classified as fiction and mystery did april read by the end of the
school year?

8121 because

130,000 divided by 16 is 8121

homozygous. one is homozygous, while two is heterozygous.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -